I did go to HF and bought the same gun you did Brian and like yours it also sunk the staple way below the surface due to the plunger protruding so far out the tip. I took Timathales advise and ground the plunger tip. Did the trick. I used my 22 gauge Haubold staples in the gun because the staples I bought at HF won't even fit it. It shot 2 at a time but worked great. I will get the right staples when I get back out. 20 dollars well spent.